CNN Money: Top business headlines for Jan. 22

NEW YORK (CNN) -- CNN Money's Maribel Aber has your top business and financial news on this Wednesday, January 22.

Ark Challenge readies for Little Rock expansion
Warwick Sabin, executive director of the Arkansas Regional Innovation Hub, will direct the ARK Challenge business accelerator when it expands to Little Rock this year. The ARK Challenge is one of several startup boot camps across the country funded by a $37 million federal Jobs & Innovation Accelerator Challenge grant. The ARK Challenge has completed two rounds in Fayetteville, the most recent naming three winners last fall. Going forward, state and private funding will fund the ARK Challenge in Fayetteville and Little Rock.

World's 85 richest own as much as poorest 50%
The richest 85 people in the world own as much wealth as the bottom half of the population, anti-poverty charity Oxfam said in a new report. Oxfam's analysis -- published on the eve of the World Economic Forum in Davos -- drew heavily on the Forbes list of the super rich and a report by Credit Suisse, which found that total wealth increased by about 5% to $241 trillion last year. Almost half that figure, or $110 trillion, is in the hands of the richest 1%. The charity said the massive concentration of wealth presented a significant threat to inclusive political and economic systems and could lead to rising social tension.

5 telltale signs you received a fake target emailTarget is sending out millions of emails to customers who had their personal information stolen in the recent security breach, and scammers are coming out of the woodwork. The emails offer customers free credit monitoring services for a year. But it's not always easy to tell whether the email landing in your inbox is legit. Here are five signs the email you've received isn't really from Target.

The world's most expensive whiskeyWhat did you pay for your last drink? Probably not a half-million dollars. A large crystal decanter filled with rare Macallan "M" whisky sold for $628,205 at a Sotheby's auction in Hong Kong this weekend. That hefty price tag set a new world record for the most expensive single-malt whisky sold at auction. What makes this whisky so special? Mostly, its rarity. First, there's the bottle. The faceted crystal decanter of The Macallan Imperiale "M" is 28 inches tall and holds 6 liters of whisky -- the same volume as 3 big soda bottles. The glass crafter said forty of the hand-blown decanters were created and destroyed due to imperfections before the piece was finally completed. Named after the Roman emperor, the "Constantine" decanter took 17 craftsmen over 50 hours to complete, the French glass company said.